Cap-feeding device for threading machines



G. F. ANDERSON. CAP FEEDING DEVICE FOR THREADING MACHINES.

APPLICATION FILED AUG-30, 1919.

1 A23, 1 73 Patented July 18, 1922.

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(i. F. ANDERSON.

CAP FEEDING DEVICE FOR THREADING MACHINES.

APPLICkTlON FILED AUG-30, 1919 Patented July 18, 1922.

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mm am m I v,\ I ma G. F. ANDERSON.

CAP FEEDING DEVICE FOR THREADING MACHINES. APPLICATION FILED AUG-30, 1919.

Patented July 18, 1922.

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Application filed August 30, 1919.

T 0 all whom it may concern:

Be it known that I, GUSTAVE FABIAN ANDERSON, a subject of the Crown of Sweden, and resident of the borough .of Brooklyn, in the city and State of New York, have invented a new and useful Improvement in Cap-Feeding Devices for Threading Machines, of which the following is a specification.

This invention relates to an improvement in cap feeding devices for threading machines, with the object in view of providing such a device whiclrincludes mechanism for rapidly and accurately feeding caps to the threading elements in proper position to be operated upon.

Another object consists in providing certam improvements in the form, construction and arrangement of the several parts whereby the above named and other objects may be effectively attained.

r A practical embodiment of the invention is represented in the accompanying drawings,.in which 7 Fig. 1 represents a top plan View of the device.

Fig. 2 represents an end elevation of the same, partly broken away.

Fig. 3 represents an enlarged detail plan view, parts being shown in difierent positions in full and dotted lines.

Fig. i represents a detail elevation of the parts shown in Fig. 3 and on the same scale.

Fig. 5 represents a detail section of the parts adjacent the feeding end of the cap chute.

The apparatus includes a base 1 wh ch supports a head 2 that is provided with upstanding journal supports 3, 4;. The main drive shaft 5 is mounted in the supports 3,

f and secured therein by suitable bearing" motion to the shaft 12. The inner end of the shaft 12 is fashioned to constitute a threading and knurling element 15.

A. sleeve 16 is rotatably mounted on the Specification of Letters Patent.

31. The bar 31 is fulcrumed at me, on BROOKLYI-I,;I\TEVI YORK, a conronnrron on new CAP-FEEDING DEVICE FOR TIE-IREADING MACHINES.

Patented Juiy is, 1922. Serial No. 320,882.

shaft 5 and has a pair of extensions 17,18 that constitute bearings for a shaft 19. This shaft has a gear 20 frictionally fixed thereto through the medium of a collar 21 and expansion coil spring 22, the latter abutting the gear 20 and washer 23 secured to the end of the shaft 19. The inner end of the shaft 19 is formed to constitute a threading and knurling element 24'tl1at is calculated to mate with the element 15 for operating upon the caps. The gear 20 is driven from a gear 25 that is fixed on the shaft 5, through the intermediation of a gear 26 mounted on. a stud that projects from a portion of the extension 18; As a result of this arrangement,

it will be understood that frictionally driven from the The sleeve 16 is adapted to rock on the shaft 5 and it has an arm 27 projecting therefrom, which arm-is bifurcated at its extremity for the reception of a threaded block 28 that receives one end of a link 29. The otherend of the link is threadedinto a block 30 that is pivoted to one end of a bar 32 in a lug upstanding from the head '2 and its other end is pivoted at 33 to the end vof a slide bar'34c. A retractile coil spring 35 connects the last named end. of the bar 31 with the the shaft 19 is shaft 5.

base 1 of the machine and serves to normallyswing the said end of the bar 31 inwardly and hence, through the link 29 and the arm 2'7, rock the sleeve 16 and extensions 1'7 and 18 carried thereby, to the right, in Fig. 2. The inner end of the slide bar 34- is provided with an elongated slot 36 that embraces a shaft 37 mounted in the frame 1. A cain 33 is rotatably mounted on the shaft 37 and fi'ictionally engaged with a gear 39 that is keyed on said shaft; The gear 39 is actuated from the shaft 5 through gears 10, 11, the latter meshing with the gear 25 fixed on the shaft 5. The gears 40 and 11 are mounted on a stud 12that projects from the support 3.

, A latch 43 has one end pivoted in the frame 1 at 414, and has its other end formed to engage a dog 45 that is carried by the cam 38. A rod 46 is secured to the latch 41-3 and has its lower end connected with a treadle arrangement '(not shown) for moving the latch 13 into and out of engagement with the dog 41-5 on the cam 38. As a V result of this last named construction, it

will be seen that the cam may be prevented from rotating with the gear 39 at any desired time, by the action of the operator in bringing the latch 43 into engagement with the dog it being recalled that the cam 38 is only frictionally connected to the gear 39.

In the operation of the apparatus, it is intended that a cap to be threaded shall be supplied to the element 15, and then the element 24E rocked into engagement with the cap on the element 15; the contact of the said parts and rotation thereof serving to impart a thread and knurling to the cap. After the cap has been operated upon and the elements 15 and 2a separated, the cap may be ejected from the element 15 by a conventional form of ejector 47 which is actuated by a rocking bar as pivoted on the support a and having one end provided with a roller 19 that engages a cam 50 mounted on and rotated by the shaft 37.

The apparatus already described is substantially identical with that shown and described in U. S. Patent to L. R. N. Carvalho, No. 1,254,026, dated January 22, 1918, and operated in the same manner. Consequently, it constitutes no part of my present invention, but represents one form of apparatus in connection with which my invention may be used.

Referring now to the device which constitutes my invention; a cap chute 51 is adjustably supported by a bracket 52, through a pin and slot engagement 52*, the other end of the bracket being fixed to the head 2.

The end of the'chute adjacent the threading apparatus terminates immediately above a quadrant shaped plate 53 that is fixed on a vertical shaft 54 which is journaled in brackets 55, 56, 57 that project from the frame and head of the machine as clearly shown in Fig. 2. The shaft 54: has an arm 58 pinned thereto and projecting laterally therefrom, the extremity of the said arm being adjustably attached by pin and slot connection 58* to one end of an extensible link 59, the other end of which is secured to a slide bar 60 that has an elongated slot 61 embracing the shaft 37. A. cam 62 is fixed to the shaft 37 and adapted to engage a roller 63 that is secured to the bar 60, for actuating the said bar and link 59 secured thereto. A retractile coil sprin 64: has one end fastened to the arm 58 and the other to the frame 1 and serves to normally act against the cam 62. From the immediately foregoing description, it will-be seen that the shaft 54 and plate 53 are periodically oscillated, as indicated in dotted lines in Fig. 3.

The lower end of the chute 51 carries a plunger 65 (see Figs. 3 and 5) that has one end projecting into the chute and is normally urged outwardly by an extension coil spring 66. Theouter end of the plunger yieldingly bears against the face of a cam 67 that is screwed to the plate 53. The cam 67 is provided with a slot 68 in order to permit adjustment. The shape of thecam 67 is such that the plunger 65 will recede from the chute 51 as the plate 53 is moved toward the threading element 15, and the inner end of the plunger will abut the wall of the chute when the plate 53 is at the limit of its said movement. The caps to be threaded are denoted by 69, and are placed in the chute 51 in an obvious manner.

The plate 53 has a depression or recess 70 that is semi-circular in cross section and fitted to receive a cap fed from the chute 51.

In operation, the chute 51 is filled with caps either by hand or from a hopper. The

caps pass down through the chute under the influence of gravity and the lowermost cap engages the plunger 65while the plate 53 is in its outer position, shown in full lines in Fig. 3, since, in this position, the plunger is forced inwardly by the cam 67. When the machine is set in action, the plate 53 will beswung to the right in Fig. 3, and, during this motion, the plunger 65 will gradually recede from the chute 61 under the influence of the spring 66. lVhen the plate 53 comes near to the limit of its inward movement, shown indotted lines in Fig. 3, the plunger 65 has moved outwardly far enough to permit a cap 69 to drop down into contact with the surface of the plate 53. As the plate 53 starts on its return movement, the plunger 65 moves inwardly and enters between the first, and second caps. When the plate has reached the limit of itsoutward movement, the first cap will drop into the recess 70 but the plunger 65 will prevent the second and following caps from moving downwardly in the chute 51. Thus, the first cap, in dropping into the recess 70, passes completely out of contact with the succeeding cap. The plate 53 now starts on another inward movement carrying the first cap in the recess 70 and places this cap on the threading element 15 to be operated upon by the threading mechanism. As the first cap is placed on the threading element 15, the secondcap is permitted to drop down into engagement with the surface of the It will be understood that various changes may be resorted to in the form, construction and arrangement of the several parts without departing from the spirit and scope of my invention and hence I do not intend to be limited to the details herein shown and described, except as they may be included in the claims.

What I claim is:

1. Apparatus of the character described comprising, a chute for the caps, threading means, a spring plunger carried by the chute for limiting the downward feed of the caps therein, an oscillating plate arranged to receive a cap from the chute and place it on the threading means, and a cam carried by said plate and fitted to engage the said plunger for permitting the caps to be fed one at a time from the chute to said plate.

2. Apparatus of the character described comprising, a chute for the caps, threading means, a spring plunger carried by the chute for limiting the downward feed of the caps therein, an oscillating plate arranged to re- 3. Apparatus of the character described comprising, a chute for the caps, threading means, a spring plunger carried by the chute for limiting the downward feed of the caps therein, an oscillating plate arranged to receive a cap from the chute and place it on the threading means, and an adjustable cam carried by said plate and fitted to engage the said plunger for permitting the caps to be fed one at a time from the chute to said plate.

In testimony that I claim the foregoing as my invention, I have signed my name this twenty-seventh day of June, 1919.

GUSTAVE FABIAN ANDERSON. 

